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1.
yiddish for party pooper or kill joy.

it does NOT mean a fat lazy woman.
Myrna was excited about the Goldstein's get together but Harvey didnt want to go. He was being a shtoonk.
by greeneyedlady June 30, 2010
 
2.
Yiddish - A fat, lazy, stupid woman. lazy fat stupid
That neighbor of ours is a shtoonk
by RoughToughCreamPuff June 04, 2006